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All Journal The Journal of Pure and Applied Chemistry Research Elkawnie Jurnal Zarah Orbital: Jurnal Pendidikan Kimia Jurnal Purifikasi Dalton : Jurnal Pendidikan Kimia dan Ilmu Kimia Jambura FIsh Processing Journal Jambura Journal of Educational Chemistry Jambura Journal of Chemistry Abdimas Umtas : Jurnal Pengabdian kepada Masyarakat Journal Syifa Sciences and Clinical Research (JSSCR) Jurnal Crystal : Publikasi Penelitian Kimia dan Terapannya Jurnal Inovasi Teknik Kimia Jurnal Sibermas (Sinergi Pemberdayaan Masyarakat) JURNAL KIMIA SAINTEK DAN PENDIDIKAN Nian Tana Sikka: Jurnal Ilmiah Mahasiswa Journal Serambi Engineering (JSE) Pentagon: Jurnal Matematika dan Ilmu Pengetahuan Alam Damhil: Jurnal Pengabdian kepada Masyarakat Jurnal Cendekia Ilmiah Jurnal Pendidikan Kimia, Fisika dan Biologi Konstanta : Jurnal Matematika dan Ilmu Pengelatuan Alam
Wiwin Rewini Kunusa
Universitas Negeri Gorontalo
Religion Agriculture, Biological Sciences & Forestry Arts Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Engineering Environmental Science Immunology & microbiology Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mathematics Medicine & Pharmacology Public Health Social Sciences Other

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Demonstrasi Kimia Sederhana sebagai Media Edukasi Sains dalam Meningkatkan Minat dan Rasa Ingin Tahu Anak TK dan SD Akram La Kilo; Wiwin Rewini Kunusa
Damhil: Jurnal Pengabdian kepada Masyarakat Vol 5, No 1: June 2026
Publisher : Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37905/damhil.v5i1.40177

Abstract

Science education at an early age plays an important role in fostering scientific literacy, curiosity, and interest in learning. However, science learning for kindergarten and elementary school children is often delivered through conventional approaches that provide limited opportunities for direct exploration and experimentation. This community service program aimed to implement simple chemistry demonstrations as an interactive science education medium to enhance children's interest and curiosity toward science. The program was conducted through the Gorontalo Expolaboratorium – Science for Kidz at the Integrated Laboratory of Universitas Negeri Gorontalo, involving 17 kindergarten and elementary school students from six schools in Gorontalo Province. The activities adopted an experiential learning approach combined with inquiry-based learning, featuring five simple chemistry demonstrations: Lava Lamp, Balloon Inflation, Elephant Toothpaste, Invisible Ink, and Dragon's Breath. Program evaluation employed descriptive qualitative analysis supported by quantitative data collected through observations, documentation, participant engagement, and satisfaction surveys. The results showed that all participants completed the entire program with a high level of enthusiasm and active participation. Approximately 80% of participants and their parents expressed satisfaction with the activities. The demonstrations successfully stimulated children's curiosity, encouraged them to ask questions, participate in discussions, and relate scientific phenomena to everyday experiences. Furthermore, the program enhanced the pedagogical competencies of graduate students serving as facilitators in communicating scientific concepts to young learners. These findings indicate that simple chemistry demonstrations provide an effective, enjoyable, and experiential approach to introducing science concepts and promoting scientific literacy among young children
Pemanfaatan Fly Ash dan Bottom Ash Sebagai Adsroben dalam Menurunkan Parameter COD dan BOD pada Limbah Cair Tahu Risti Ristianingsih Badu; Wiwin Rewini Kunusa; Nur Inda R. Umadji; Mulyani Zahra Paramata; Anisyah A. MS. A
Jurnal Serambi Engineering Vol. 10 No. 2 (2025): April 2025
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

The demand for clean water in Indonesia has been steadily increasing, but water pollution from industrial wastewater, especially from tofu production, remains a significant challenge. This study investigates the potential of fly ash and bottom ash as adsorbents to reduce chemical oxygen demand (COD) and biochemical oxygen demand (BOD) in tofu wastewater. Laboratory experiments were conducted with different adsorbent doses of 25, 50, and 75 grams. The adsorption process involved stirring the samples for 60 minutes, followed by a sedimentation period of 120 minutes. The results showed that fly ash was more effective than bottom ash in reducing COD and BOD levels. At a dose of 75 grams, Fly Ash achieved a 72% reduction in COD (from 0.8672 mg/L to 0.2438 mg/L) while Bottom Ash resulted in a 68% reduction with a final COD concentration of 0.2735 mg/L. A similar pattern was observed in the reduction of BOD. These results indicate that both fly ash and bottom ash can be effective and environmentally friendly alternatives for the treatment of tofu wastewater.
EFEKTIVITAS LIMBAH PLTU: PENGGUNAAN FLY ASH DAN BOTTOM ASH SEBAGAI ADSORBEN UNTUK MENURUNKAN KANDUNGAN TSS LIMBAH CAIR TAHU Wiwin Rewini Kunusa; Risti Ristianingsih Badu; Nur Inda R Umadji; Mulyani Zahra Paramata; Rahmi I Ibrahim
Purifikasi Vol 24 No 1 (2025): Jurnal Purifikasi
Publisher : Department of Environmental Engineering-Faculty of Civil, Planning, and Geo Engineering. Institut Teknologi Sepuluh Nopember, Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/purifikasi.v24i1.502

Abstract

Penelitian ini mengkaji efektivitas limbah pembakaran batubara, yaitu Fly Ash dan Bottom Ash, sebagai adsorben untuk menurunkan kadar Total Suspended Solids (TSS) dalam limbah cair industri tahu. Tujuan utama dari studi ini adalah untuk mengevaluasi kinerja kedua jenis adsorben dengan variasi dosis (25, 50, dan 75 gram) serta membandingkan efisiensi penurunan TSS. Metode eksperimental kuantitatif digunakan dengan mengaktivasi Fly Ash dan Bottom Ash, kemudian mengolah sampel limbah melalui proses sedimentasi dan filtrasi. Hasil penelitian menunjukkan penurunan TSS yang signifikan, di mana Bottom Ash mencapai efisiensi sebesar 94% (0,921 mg/L) pada dosis 75 gram, lebih unggul dibandingkan Fly Ash yang mencapai efisiensi 92% (1,146 mg/L). Fly Ash memerlukan dosis yang lebih tinggi untuk mencapai hasil yang setara, mengonfirmasi keunggulan Bottom Ash dari segi porositas dan konduktivitas hidrolik untuk aplikasi skala besar. Kedua adsorben memenuhi baku mutu air limbah berdasarkan standar Indonesia, membuktikan kelayakan praktisnya. Dalam studi ini, Bottom Ash juga terbukti tahan terhadap penyumbatan dan memiliki biaya rendah karena memanfaatkan limbah PLTU yang melimpah. Penelitian ini menawarkan solusi ramah lingkungan untuk pengolahan limbah tahu sekaligus mendaur ulang abu batubara, sejalan dengan prinsip ekonomi sirkular.
Co-Authors A. Mu’thi Andy Suryadi Adam Mustapa, Muhammad Ahmad Kadir Kilo Akram La Kilo Andimala, Febriyanti Anisyah A. MS. A Annisa Untuba Arviani Arviani Arwin, Muh. Astin Lukum Astin Lukum Azrila Natania Korompot Basalama, Muhamad Tri Rezki Dea Pinangi Deasy N. Botutihe Defliani Adam Djalil, Jhodi Pratama Doly Prima Silaban Endah Nurrohwinta Djuwarno Erga Kurniawati Erni Mohamad Febriyanti Andimala Febriyanti Andimala Fitri Hadji Frida Maryati Yusuf giu, fitri ani Guge, Sri Rahmawati HARIS MUNANDAR Haris Munandar Hendri Iyabu Hendri Iyabu Hendri Iyabu Hendrik Iyabu Histina, Maria Ibrahim, Febriyanti Ibrahim, Indriyanti Ibrahim, Sufriyanto Indah Rahayu Sanusi Inrawani Inrawani Ishak Isa Ishak, Candrawati Ishka Isa Jafar La Kilo Jafar La Kilo Julhim S Tangio Julhim S Tangio Julhim S Tangio Julhim S. Tangio Karim, Cecy Rahma Karmila Bilondatu Kostiawan Sukamto, Kostiawan La Alio La Ode Aman La Ode Aman Mahdi Kilo Malae, Ismail Mangara Sihaloho Mangara Sihaloho Mardjan Paputungan Marnila Marnila Masrid Pikoli Meylani Frisilia Meyrin Hamzah Moh Izwarto Piyohu Moh. Fajri Moh. Fajri Langgene Muh. Arwin Muhamad Handoyo Sahumena Muhammad Taupik Mulyani Zahra Paramata Mulyani Zahra Paramata Murjiatunur Amboy Musa, Weni J.A Musa, Weny J.A. Najmah Najmah Netty Ino Ischak Ngabito, Putri Amalia Nita Suleman Nita Suleman Nur Inda R Umadji Nur Inda R. Umadji Nur Isty Fidya Nur Rafida Akub Nur'afni Suaib Nurfadilah M. Kasim Nurhayati Bialangi Nurhayati Bialangi Opir Rumape Pakaya, Agustina H. Pakaya, Sitti Masita A. Palari, Nuraini Potale, Stefani Meylan Putri Amalia Ngabito Rahmi I Ibrahim Ramli Utina Riryn Tahir Risti Ristianingsih Badu Romario Abdullah Roslina Imran Rusmani Tasanif Sahami, Ulin Sahrial Lakasim Siti Hadijah Lamato Bempa Siti Hairunisa Kandusu Siti Nur Hikma H. Hasbula Sitty Salsabilla Ishak Sri Rahayu Latif Sri Rahmawati Dukalang Sriyana Ohi Suci Damayanti Sufriyanto Ibrahim Syakina Marilan Daaliwa Thayban Thayban Thayban, Thayban Umadji, Nur Inda R. Vera Yustika Wa Ode Nurlisa Weny A Musa Weny J.A Musa Wina Zulfiana Tulie Yestin Takowa Yusuf, Risciana Yuszda K Salimi Yuszda K. Salimi Zikran Abdullah Zulfa K Muslimin Zulfikar Ahmad